Virginia
preferred label: ویرجینیا @fa
type: Concept
related: Potomac Group

Cretaceous
preferred label: کرتاسه @fa
type: Concept
narrower: Potomac Group

Maryland
preferred label: مریلند @fa
type: Concept
related: Potomac Group

Potomac Group
related: Maryland
related: Delaware
related: Virginia
broader: Cretaceous
preferred label: گروه پوتوماک @fa
type: Concept

Delaware
preferred label: دلاور @fa
type: Concept
related: Potomac Group